What chemical is used to remove impurities such as Sulphur Dioxide,
carbon dioxide and the oxides of Nitrogen during the preparation of
hydrogen gas
Answers
Answered by
2
Answer:
Caustic potash solution to remove sulphur dioxide, carbon dioxide and oxides of nitrogen.
SO2 + 2KOH → K2SO3 + H2O
CO2 + 2KOH→ K2CO3+ H2O
2NO2 + 2KOH →KNO2 + KNO3 + H2O
Answered by
0
Answer:
Cooling of the gas is necessary to remove impurities and to condense and remove part of the water vapour, which would dilute the acid product. The sulfur dioxide gas is then dried with concentrated sulfuric acid.
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